There are many benefits of making selection of those of prefabricated buildings including cost, convenience and speed. There are indeed quite a few variations on lead times meanwhile depending in terms of what type of prefab structure you choose.
Lead times will always be lower compared to a conventional building as the manufacture and also website preparation including ground-works can be easily carried out simultaneously. So, it would be completely fair to say you could easily have lead time especially when comparing prefabricated to bricks and mortar.
There are many prefabricated buildings do need some type of footing and also ground preparation if only in the great form of basic concrete slab. There is indeed one important type of prefabricated structure meanwhile that, in many cases, doesn’t need any important foundations.
These are indeed important prefabricated buildings that are engineered with use of aluminium frame as opposed to a steel frame. This generally makes for a much lighter structure that doesn’t need the same level of support or weight transfer to the earth beneath.
Besides, the installation method is generally used for aluminium framed prefab buildings involving anchoring the building down to the existing ground. Base plates are meant to be measured out and laid onto the build surface and then anchored into place with use of ground anchors or bolts.